The City of Greater Geraldton has signed an agreement with a doctor to serve the Mullewa community, in mid-west Western Australia, which has been without a GP service for more than a fortnight.

Residents have been facing a 200 kilometre round trip to the nearest GP since the Mullewa Medical Centre closed last month.

The city, which owns the centre, said it had reached an interim agreement that would see a GP serve the town on Tuesdays and Thursdays, starting today.

Deputy Mayor Neil McIlwaine said the trial would help to better understand the level of demand for the service.

"If the demand is there for two days a week and that's not meeting the demand then I hope the facilities there hopefully can be increased but you may well find that two days is sufficient," he said.

"So hopefully it can lead to a longer term arrangement that continues on so that the community has access to [a] basic medical facility and services."

The owner of the pharmacy in Mullewa had been reassessing the viability of his business since the closure of the town's only GP clinic.

Michel Ibrahim has welcomed the new arrangements.

He said the loss of a the GP had caused problems for the local community.

"People have been really frustrated when the doctor decided to leave, because it's a 200 kilometre round trip to see the doctor and sometimes when you're sick, you wouldn't want to do that," he said.

He said both services were vital to the town.

"A lot of [the] Mullewa population are elderly people that haven't got a drivers licence," he said.

"Quite a few people haven't even got a car to start with and those people will be struggling without having a pharmacy or a doctor for that matter."

Miner partners with ambulance service to help Westonia

Meanwhile, a mining company and St John Ambulance have banded together to provide emergency services to a Wheatbelt town that has been without an ambulance depot for 18 months.

The Westonia ambulance depot closed in 2014 and the next closest service was more than 50 kilometres away in Merredin.

This week, gold producer Evolution Mining has offered two emergency response team members and 10 other workers for training as volunteers.

St John's Steve Hall said it was a great turnaround for the community.

"What it means is that our response to a community [will] be a lot faster," he said.

"Merredin is approximately 50 kilometres from Westonia, so it's 50 kilometres less travel time to treat people in that community and get them to proper hospital care."

He said the focus can now turn to providing better care for Westonia and attracting and retaining its volunteers.

"It's about continuing to engage within the community and encouraging volunteers to come forward and assist," he said.

"We never judge volunteers on how much they do, it's just we're grateful for anyone that can do anything within their community to assist St John assist with providing our service within the community."